Type-writing machine



(No Model.) v 6 Sheets-Sheet 1.

J. R. MURPHY.

TYPE WRITING MACHINE. No. 324,407. Patented Aug. 18, 1885.

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(No Model.) s Sheets-Sheet J. R. MURPHY.

. TYPE WRITING MACHINE.

No. 324,407. Patented Aug. 18, 1885.

(No Model.)

J. R. MURPHY.

TYPE WRITING MACHINE.

Patented Aug. 18, 1885.

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6 Sheets-Sheet 3.

(No Model.)

6 SheetsSheet 4. J. R. MURPHY.

TYPE WRITING MACHINE.

No. 324,407. Patented Aug. 18, 1885 Iqveqluac/Qu I Gullah/-4 @fimv N. PETERS. PholoLithngnphor. Wamlnglom D. C.

(m5 Model.) -Y e sheets sheet 5.

- J. R. MURPHY.

TYPE WRITING MACHINE.

,407. Patented Aug. 18, 1885.

N PETERS. PlMn-L'nhomphr. Wuhingkm, D.C.

(N6 Model) 6 SheetsSheet 6.

- J. R. MURPHY.

TYPE WRITING MACHINE.

N0. 324,407. Patented Aug. 18, 1885.

EJ 25535- h\|211u11 may UNITED STATES PATENT OFFICE.

' J AMES It. MURPHY, OF GRAFTON, PENNSYLVANIA.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 324,407, dated August 18, 1885.

Application filed April 11, 1 88 4. (No model.)

To 01. whom it may concern:

Be it known that I, J AMES R. MURPHY, of Grafton, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Type-Writers; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being bad to the accompanying drawings, forminga part of this specification, in which Figure l is a plan view of my improved type-writer. Fig. 2 is a side elevation there- Fig.3 is a rear elevation. Fig. 4 is a vertical sectional view on the line w :r, Fig. 1, showing the carriage-actuating mechanism. Fig. 5 is a detached view of the actuating ratchet-wheel and pawls. Fig. 6 is adetached view showing the end of the'lever which rotates the roller on its axis passing under the incline. Fig. 7 is a detached View showing the rack-pinion and ratchet-wheel, the actuating-pawl, and the springbolt which disengages the pawls from the ratchet, the pawl being engaged with the ratchet. Fig. 8 is a view of the same parts, the pawl being disengaged from the ratchet. Fig. 9 is a plan view of spring-dog, trigger, and spring-bolt which disengages the pawls, and Fig. 10 is a plan view of a portion of the arm on the carriage which engages with the lever arm which draws back the spring-bolt and engages the spring-dog therewith. Fig. 11 is ahorizontal sectional view through the sliding plate 60.

Like figures of reference indicate like parts wherever they occur.

My invention relates to that class of typewriters in which the printing letters or type are placed on the ends of levers arranged around a central point, the levers being connected with keys by which they are caused to rise and strike a roller, around or over the lower face of which the paper is placed, each letter striking on the same vertical line, the roller being-moved a space longitudinally at each stroke or movement of the levers, and being rotated on its axis by or at the longitudinal movement of the roller.

I will now describe my invention, so that others skilled in the art may manufacture and use the same.

In the drawings I have shown my improved devices adapted for use in connection with that style of type-writerknown as the Romington type-writer, and it mayin a like manner be adapted to other similar type-writers by making the necessary changes in the arrangement and form of the devices employed.

In a suitable frame, 2, is pivoted a series of levers, 3, which at the front end are provided with keys 4,which constitute the key-board of the machine. Two of the levers support a bar, 5, in the front of the keys, the purpose of which is to move the roller longitudinally one space or more without producing an impression on the paper, as hereinafter more fully appears. In the top of the frame 2 is a circular opening, .6, in which, sustained by brackets 7, are anumber of short spindles or shafts, mounted on which shafts are levers 9, having hubs or hollow journals 10 and short arms 11 extending backward at an angle and connected with the levers 3 by links or arms. Secured to the front ends of these levers 9 are the letters or characters 12 by which the impression is made on the paper. The paper-carrying roller 14, against which the type on the levers 9 strike, is situated on top of the frame 2 over the circular opening 6, and is journaled in suitable bearings, 16, in a sliding carriage, 17, which carriage is pivoted on the frame 2 by the rod 18, on which the carriage 17 slides, while the front portion of the carriage is supported bya wheel, l9,whicl1 rests on the front portion of the top plate, 2. Journaled in the carriage 17, in rear of the roller 14, is the usual guide-roller, 20, and bands 2l,passing over band-wheels 22, mounted in front of the roller 14. In order that both capitals and small letters may be employed, these rollers may be mounted on a secondary frame, 28, which slides on the carriage 17, so that the rollers may be moved laterally over the openings 6 by the usual rocking pawls and levers. Extending over the opening 6, under the roller 14, is the ink-ribbon 30, which is wound on the spools 31, situate at each side of the frame 2, and mounted on shafts 32, connected with each other by the shaft and miter wheels 34. At one end of the roller 14, and secured thereto, is a ratchet, 35, and a springsecuring pawl, 36, fastened to the carriage 17 bears on the teeth of the ratchet. Pivoted to the carriage 17 is the curved lever 37, by which.

the roller 14 is rotated on its axis by a pivoted spring-pawl, 38,which is pivoted on the lever 37, and engages with the ratchet'wheel 35. This lever also at the same time serves to raise the rack, the rear end of the lever engaging and pressing down an arm, 39, extending from the rack 40.

All these devices are substantially the same as now employed in the Remington typewriter, and form no part of my invention.

A positive longitudinal movement is imparted to the paper-carrying roller 14 from right to left by means of a pinion and rack and a ratchet and pawl.

The rack 40,which is pivoted on the rod 18, so as to move thereon longitudinally and impart motion to the carriage 17, meshes with the teeth of a pinion, 41, which is mounted below the rack on the bracket 42, inside of the frame 2. As the motion is imparted to the carriage by means of the rack 40 and pinion 41, it is necessary that the rack, while the pinion is in operation, beheld firmly thereon, and for this purpose a bell-crank lever, 43, is pivoted to the carriage 17, so that one arm of the lever shall rest over the rack 40,while the end of the other arm engages in a notch in the end of a bar, 44, sliding in brackets on the side of the carriage 17 ,which bar is held back in position by the spring 45, so that the arm of the bell-crank remains over the rack and prevents it from being lifted from on the pinion. When, however, the forward end of the lever 37 is raised, and consequently the other end is lowered, a lug or dog, 46, secured adjustably to the side of the lever 37 by a setscrew passing through a slot in the dog, comes in contact with one arm of a bell-crank lever, 47, which is pivoted to a bracket, a, Fig. 1, on the carriage 17, and on the other arm, I), of which bcll-crank is a pin which engages in the arm 48, extending from the bar 44. As the dog 46 depresses the arm of the bell-crank 47. the other arm, b, Fig. 1,being moved back, moves the bar 44,which pushes the arm of the bell-crank 43 from off the rack 40, and the end of the lever 37 then comes in contact with the arm 39 and raises the rack from off the pinion, so thatthe carriage may be moved in either direction. By means of the usual dog, 49, the length of the stroke of the pawl 38 may be adjusted so as to feed one or two notches of the ratchet 35. By pushing forward the arm 33 of the bel1-erank 47, and at the same time depressing the arm 39, the rack may be raised and the carriage moved longitudinally in either direction without rotating the roller 14.

In order to permit of the carriage being lifted without raising the rack, a bell-crank, 50, is pivoted on the side of the carriage 17 one arm of which bell-crank is connected with a tilting board, 51., arranged along the front of the carriage, while a pin on the other arm engages in a slot in the bracket or arm 52, extending from the bar 44, so that when the tilting board is depressed by taking hold of the front bar of the carriage the arm of the bellcrank 43 is removed from oft" the rack, and

nal position, while the forward movement of so the carriage is imparted by the pinion 41, meshing into the teeth of the rack 40, motion being imparted to the pinion from the levers 3 by means of the pawl 54 and the ratchet 13, which is fixed on the inner side of the pinion. Below the levers 3 (see Fig. 4) is a horizontal bar, 55, suspended by the link 56 from the rocking arms 57, so that when the levers are depressed the bar 55 and arms 57 are also depressed, and when the lever is released are returned to their original position by the spring 58, extending from the frame 2 to the arm 57. Fitting in a slide in the bracket 59 in the frame 2 is a sliding plate, 60, which is connected by the arm 61 and spring 62 with the rocking arm 57, so that as the rocking arm is depressed the plate will be drawn down by the spring 62, and when the bar 57 is re leased, it being drawn back by the spring 58, a friction-roller, c, Fig. 4, mounted on the upper face of the bar 57 comes in contact with the arm 61 and raises the plate 60. livoted to the upper end of the plate 60 is the actuating-pawl 54, which is pressed against the ratchet 13 by the bar-spring 63, (see Figs. 7 and 8,) the lower end of which is fixed to the plate 60. Below the pawl 54 is a fixed springpawl, 64, which also engages with the teeth of the ratchet and prevents a backward movement of the same during the downward movement of the actuating-pawl 54.

The purpose of the plate 60 is to impart a perpendicular movement to the pawl from the oscillating movement of the rocking arm 57, the plate being fitted in a grooved slide formed on the bracket 59, which bracket is firmly secured to the body of the frame 2. The slide acts as a guide to the plate and prevents an uneven or unequal movement being imparted to the pawl.

By these devices, whenever one of the keylevers 3 or the space-bar 5 is depressed, the pawl 54 is pulled down and engages with a lowertooth on the ratchet, and when the lever is released the force of the spring 58 draws the bar 57, plate 60, and pawl 54 back to their former position, thereby moving the pinion 41, rack 40, and carriage 17 one space, overcoming the force of the spring 53; and when the ratchet is so moved the fixed pawl 64, engaging with a tooth of the ratchet 13, prevents any backward movement of the carriage under the force of the spring 53.

Should it be desired to return the carriage to its normal position, it is only necessary-to raise the rack 40 from the pinion in the manner herein before described. When, however, in printing, the carriage reaches the end of its longitudinal movement, itis automatically returned to its normal position by the force of the spring 53, the pawls 54 and 64 being removed or pushed back from the ratchet 13, allowing the pinion 41 to rotate idly as the rack 40 passes over it. This is accomplished by the following devices: On the top plate of the frame 2, directly in front of the rack 40, is a sliding bar, 65, Fig. 7, mounted in asuitableslide or Way. On the end of this bar 65 nearest the side of the frame 2 is a pin, 66,

which, engages with a notch in a spring-dog, 67, secured. to the top plate of the frame 2.

Extending from the other side of the bar 65 to' a plate or pin, which may be secured adj ustably to the frame 2, is a spiral-spring, 68, the.

force of which carries the bar 65, when it is released fromthe spring-dog,toward the ratch et and pawls 54 and 64, upon reaching which.

it comes in contact with a second sliding bar,

69, situate on the same longitudinal line. Extending downward from the bar 69 is a curved arm, 70, which, whenthe bar 69 is driven back by the bar 65, comes in contact with the pawls 54 and 64, and, as the force of the spring 68' is greater than the'force of the springsof the pawls, draws the pawls away from the ratchet, and, as the pinion 41is then free to travel in a reverse direction, the car.- riage is drawn back by the force of the spring 53 to its normal position. 7

Thedevice which releases the spring dog 67 when the carriage reaches the end of its longitudinal movement is an arm, 71, (see Fig. 3,) which is ,adjustably secured in a longitudinalslot inthe carriage 17 by aset-screw, 72. of the rack 40 and having a curved edge, rides over a horizontal arm, 73, on the end of the dog 67, and, pressing the dog down, releases the pin 66 from the notch and allows the bar 65 to be carried back by the spring 68, as already described. Before the carriage reaches'the end of-its movement it trips a hammer which sounds the warning-bell 74.

Instead of continuing the motion of the carriage until the bar 65 is released by the arm 71, the dog 67 may be pressed down by pressing on the end of the lever 100,- which is connected by the link 101 with the arm 73 on the end of the dog.

On the forward side of the sliding bars 65 and 69, at their meeting ends, are two horizontal pins, 75 and 76, above which, and pivoted to the frame 2, is a dog, 77, having a notch, 78, and a hook or incline, 79, atits end. \Vhen the bar 69 is driven back by the bar 65, the pin 76 passes into the notch 78, and is held thereby in this position, as shown in Fig. 8, until the bar 65 being drawn forward to its original position, and the pin passingthe notch in the spring-dog, as hereinafter described, the dog 77 is raised by the pin 75 passing un- I from the side of the carriage 17.

This arm, projecting downward in front bar 69.is.again drawn forward by the force of the spring'pawls 54 and 64 hearing on the curved arm 70, which pawls then re-engage with the ratchet, as shown in Fig. 7.

The carriage on its return movement under the force of the spring 53 draws back the bar 65until it again engages with the notchin the spring-dog 67.

Pivoted to the top plate of the frame 2 is a horizontal lever ortrigger, 80, atthe rear end of which is the vertical pin 81, arranged to engage with the end of the pin 66 on the end of the bar 65, so that when the rear end of the trigger 80 is carried forward it draws the pin 66 over the inclinedupper face of the springdog 67, so as to bear the dog downward until the pin 66 comes over and engagesin the notch.

This movement carries the bar 65 forward, looks it in position, and releases the bar 69 by releasing the dog 77 after the bar 65 has been locked. V

The movement of the trigger 80 is caused by the curved arm 82, (see Fig. 3,) which is adjnstably secured by means of a set-screw, 83, in a slide on-the horizontal arm 84, extending 7 As. the carriage is carried back by the returning-spring 53 this curved arm 82 comes in contact with the forward end of the trigger 80 and carries it with the carriage, (the force of the spring drawn back to the spring-dog 67 bythe trig ger, 80, the pin 75, passing under the incline, lifts the dog 77, so that at the same time the pawls are released and the sliding bar 65 is reset. The purpose of the set-screw 83 is to adj ustthe arm 82 to leave a'wider or narrower margin on the paper, as is desired, as by means of this screw the arm may be adjusted to re turn the rod or bar 65 by means of the trigger 80 before the carriage on its return movement has reached the end of the rod 18.

.The special purpose of the dog 77 and the second bar, 69, is to prevent the pawls 54 and 64 from engaging with the ratchet 13 until after the bar 65 has been locked and the carriage 17 has finished its return movement.

During the return movement of the carriage the roller 14 is automatically'tu'rned on its axis a given space, so that a new line on the paper is presentedto the type.

On the top plate of the fra-me2, at the side of the same at which the spring 53 is situate, and in rear of the carriage 17, is a standard,

90, extending laterally from the upper portion of which standard is an inclined bar or leaf,

91. Extending from the curved lever 37 toward the rear of the frame2 is an arm 92, on the end of which is a friction-roller,93, which on the return movement of the carriage is carried under the inclined leaf 91, and,coming in contact with the under surface of the leaf, is pressed down, and depressing the rear end of the lever 37, turns the roller 14 in the manner already described. As the carriage reaches the end of its movement the roller 93 passes out from under the leaf 91 and the lever 37 resumes its normal position. During the forward movement of the carriage, when the roller meets the leaf 91, it rides over the upper surface of the same, a portion of the leaf being hinged and supported by a spring, as shown in Fig 6,so that this portion over which the roller passes may be pressed down by the roller, and the roller being hinged on the arm 92 so that it may be lifted, as shown in Fig. 6. The standard 90 may also be adjusted vertically by the set-screw 105 for the purpose of regulating the movement of the lever 37 so as to rotate the roller 1; one or more spaces, as is desired. This standard 90 is secured to the frame 2 by a setscrew, 95, so that the standard may be adjusted to rotate the roller 14: before the carrlage reaches the end of the rod 18, thereby leaving a wider margin, the arm 82 being correspondingly adjusted. By means of the usual set-screw, 96, on the rack 40, the apparatus may be adjusted for narrow paper. In this case the arm 71, which releases the bar 65, should be correspondingly adjusted by means of the setscrews 72. It will be noticed that scales are marked above the set-screws for the purpose of facilitating a proper adjustment of the parts.

Instead of the spring 53, a weight may be employed.

Although many of the parts of the typewriter have not been particularly mentioned in this specification, as they do not form any part of my invention, all the necessary devices now used in the Remington typewriter, or their equivalent, may be employed in connection with my improvement.

I do not desire to limit myself to the particularform of ratchet, pawl,and pinion described in the specification and shown in the drawings, as other forms may be employed for the purpose of communicating power to the rack and carriage-as, for instance, a pawl engaging with beveled teeth formed on the rack. I prefer, however, to employ the devices which I have shown and described.

Having thus described my invention,what I claim,and desire to secure by Letters Patent, 1s-

1. In a typewriter, the combination of a paper-carrying carriage, a pivoted rack connected with the carriage, operating mechanism, substantially as described, and a movable retaining-dog or bar engaging with the rack for the purpose of retaining the rack in contact with the operating mechanism, substantially as specified.

2. In a type-writer, the combination of a paper-carrying carriage, a pivoted rack conneeted with the carriage, operating mechanism, substantially as described, a lever for rotating the paper-roller, and a retaining dog or bar engaging with the rack and connected with the lever, substantially as and for the purpose specified.

3. In a type-writer, the combination of a paper-carrying carriage,a rack and actuatingpawl, substantially as described, asliding bar operated by a spring or weight and arranged to disengage the pawl, and a retaining-dog arranged to engage with the sliding bar, so as to retain the same from the pawl until released, substantially as and for the purpose specified.

4. In a typewriter, the combination of a paper-carrying carriage,a rack and actuatingpawl, substantially as described, a free bar arranged to engage with the pawl so as to release the pawl, abar connected with actuating mechanism, substantially as described, and arranged to impart motion to the free bar, and a retaining-dog arranged to engage with the free bar and retain the same until the actuated bar has been withdrawn,substantiall y as and for the purpose specified.

5. In a type-writer, the combination of a papercarrying carriage, actuating mechanism, substantially as described, a releasing-bar for releasing the carriage from the actuating mechanism, a lever for withdrawing the releasing-bar from the actuating mechanism,and an arm connected with the carriage and arranged to engage with the free end of the withdrawing lever, substantially as and for the purpose specified.

In testimony whereof I have hereunto set my hand this 2d day of April, A. D. 1884..

JAMES R. MURPHY.

\Vitnesses:

W. B. CORWIN, JAMES K. BAKEWELL. 

